Siddique, M., Sultana, N., Haque, M., Hossain, M. and Ahmed, J. (2008) “Effects of Twin Scale Size and Hormones on In vitro Propagation of Hippeastrum (<i>Hippeastrum hybridum</i>)”, Plant Tissue Culture and Biotechnology, 16(2), pp. 105–110. doi: 10.3329/ptcb.v16i2.1111.